Personalized Light Blue Awareness Owl Graves Prostate Lymphedema Youth T-Shirt. Cute light blue owl with ribbon comes on a Youth T-Shirt - White to show awareness for prostate cancer, thyroid cancer, Lymphedema, or Grave's disease. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.